What Is the Half-Reaction That Occurs at the Cathode During

question 89

Multiple Choice

What is the half-reaction that occurs at the cathode during the electrolysis of an aqueous sodium iodide solution?

• A) Na⁺ + e^- →
• B) O₂(g) + 4H⁺(aq) + 4e^- → 2H₂O(l)
• C) 2H₂O + 2e^- → H₂ + 2OH^-
• D) I₂ + 2e^- → 2I^-
• E) 2I^- → I₂ + 2e^-

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